/**************************************************************
 * 
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 * 
 *   http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 * 
 *************************************************************/



#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include <X11/Intrinsic.h>

#include "jni.h"

// Workaround for problematic IBM JDK 1.6.0 on ppc
#ifndef _JNI_IMPORT_OR_EXPORT_
#define _JNI_IMPORT_OR_EXPORT_
#endif

#include "jawt_md.h"
#include "jawt.h"


#define SYSTEM_WIN32   1
#define SYSTEM_WIN16   2
#define SYSTEM_JAVA    3
#define SYSTEM_OS2     4
#define SYSTEM_MAC     5
#define SYSTEM_XWINDOW 6


/* type must be something like java/lang/RuntimeException
 */
static void ThrowException(JNIEnv * env, char const * type, char const * msg) {
    jclass c;
    (*env)->ExceptionClear(env);
    c = (*env)->FindClass(env, type);
    if (c == NULL) {
        (*env)->ExceptionClear(env);
        (*env)->FatalError(
            env, "JNI FindClass failed");
    }
    if ((*env)->ThrowNew(env, c, msg) != 0) {
        (*env)->ExceptionClear(env);
        (*env)->FatalError(env, "JNI ThrowNew failed");
    }
}

/*****************************************************************************/
/*
 * Class:     com_sun_star_comp_beans_LocalOfficeWindow
 * Method:    getNativeWindowSystemType
 * Signature: ()I
 */
JNIEXPORT jint JNICALL Java_com_sun_star_comp_beans_LocalOfficeWindow_getNativeWindowSystemType
  (JNIEnv * env, jobject obj_this)
{
    (void) env; /* avoid warning about unused parameter */ 
    (void) obj_this; /* avoid warning about unused parameter */ 
    return (SYSTEM_XWINDOW);
}


/*****************************************************************************/
/*
 * Class:     com_sun_star_beans_LocalOfficeWindow
 * Method:    getNativeWindow
 * Signature: ()J
 */
JNIEXPORT jlong JNICALL Java_com_sun_star_comp_beans_LocalOfficeWindow_getNativeWindow
  (JNIEnv * env, jobject obj_this)
{
	jboolean result;
	jint lock;

	JAWT awt;
	JAWT_DrawingSurface* ds;
	JAWT_DrawingSurfaceInfo* dsi;
	JAWT_X11DrawingSurfaceInfo* dsi_x11;

	Drawable drawable;
	Display* display;

	/* Get the AWT */
	awt.version = JAWT_VERSION_1_3;
	result = JAWT_GetAWT(env, &awt);
	if (result == JNI_FALSE)
        ThrowException(env, "java/lang/RuntimeException", "JAWT_GetAWT failed");
	
								/* Get the drawing surface */
	if ((ds = awt.GetDrawingSurface(env, obj_this)) == NULL)
		return 0L;
        
	/* Lock the drawing surface */
	lock = ds->Lock(ds);
	if ( (lock & JAWT_LOCK_ERROR) != 0)
        ThrowException(env, "java/lang/RuntimeException",
                       "Could not get AWT drawing surface.");
	
	/* Get the drawing surface info */
	dsi = ds->GetDrawingSurfaceInfo(ds);

	/* Get the platform-specific drawing info */
	dsi_x11 = (JAWT_X11DrawingSurfaceInfo*)dsi->platformInfo;
	
	drawable = dsi_x11->drawable;
	display  = dsi_x11->display;

	/* Free the drawing surface info */
	ds->FreeDrawingSurfaceInfo(dsi);
	/* Unlock the drawing surface */
	ds->Unlock(ds);
	/* Free the drawing surface */
	awt.FreeDrawingSurface(ds);

	return ((jlong)drawable);
}